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|Title:||AP-TPR technique and tool for organic sulfur speciation in lignit humic acids||Authors:||STEFANOVA, Maia
|Issue Date:||2003||Publisher:||Association Ecological Alliance||Source:||Ecology and future, 2(3/4). p. 83-85||Abstract:||This paper describes the application of the atmospheric pressure-temperature programmed reduction (AP-TPR) technique in determining organic sulfur speciation in humic acids. The profile of AP-TPR measurement is presented as well as the compositions of sulfur volatiles registered in flue gases by AP-TPR-GC/MS. The results demonstrate that the AP-TPR technique is essential in determining thiols, dialylsulfides, sulfoxides and sulfones in lignite humic substances. It is a possible alternative of X-ray spectral techniques. On the other hand, the disadvantage is that the procedure is destructive, but analyses require a relative small sample quantity. The technique can be adapted as a routine in laboratory depending on the purpose of the study.||Document URI:||http://hdl.handle.net/1942/4716||Category:||A2||Type:||Journal Contribution|
|Appears in Collections:||Research publications|
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